n.
1.ammunition consisting of a cylindrical casing containing an explosive charge and a bullet
2.a light-tight supply chamber holding the film and supplying it for exposure as required
3.a module designed to be inserted into a larger piece of equipment
4.an electro-acoustic transducer that is the part of the arm of a record player that holds the needle and that is removable
Idiom of the Day
ring down the curtain on (something)
to bring something to an end
The famous singer rang down the curtain on an evening of wonderful music.